16688627609091 has 8 divisors (see below), whose sum is σ = 22251540984000. Its totient is φ = 11125732986792.

The previous prime is 16688627609047. The next prime is 16688627609113. The reversal of 16688627609091 is 19090672688661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16688627609091 - 2¹³ = 16688627600899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16688627609191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2460405 + ... + 6279398.

It is an arithmetic number, because the mean of its divisors is an integer number (2781442623000).

Almost surely, 2^{16688627609091} is an apocalyptic number.

16688627609091 is a deficient number, since it is larger than the sum of its proper divisors (5562913374909).

16688627609091 is an equidigital number, since it uses as much as digits as its factorization.

16688627609091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376305.

The product of its (nonzero) digits is 94058496, while the sum is 69.

The spelling of 16688627609091 in words is "sixteen trillion, six hundred eighty-eight billion, six hundred twenty-seven million, six hundred nine thousand, ninety-one".